realme GT 6T 5G (Razor Green,12GB RAM+256GB Storage) | India’s 1st 7+ Gen 3 Flagship Chipset | 1.5M+AnTuTu Score | 5500mAh+120W | The World’s Brightest Flagship Display

Here’s the modified HTML with the specified changes applied:

<div class="a-row a-spacing-top-base"><br />
    <div class="a-column a-span6"><br />
        <div class="a-row a-spacing-base"><br />
            <div class="a-row a-expander-container a-expander-extend-container"><br />
                <div class="a-row"><br />
                    <div class="a-column a-span6"><br />
                        <h1 class="a-size-medium a-spacing-small">Technical Details</h1><br />
                    </div><br />
                </div><br />
                <div data-expanded="true" class="a-expander-content a-expander-extend-content"><br />
                    <div class="a-row a-expander-container a-expander-inline-container"><br />
                        <div data-expanded="true" class="a-expander-content a-expander-section-content a-section-expander-inner"><br />
                            <table id="productDetails_techSpec_section_1" class="a-keyvalue prodDetTable" role="presentation"><br />
                                <tr><br />
                                    <th class="a-color-secondary a-size-base prodDetSectionEntry">RAM</th><br />
                                    <td class="a-size-base prodDetAttrValue">‎12 GB</td><br />
                                </tr><br />
                                <tr><br />
                                    <th class="a-color-secondary a-size-base prodDetSectionEntry">Product Dimensions</th><br />
                                    <td class="a-size-base prodDetAttrValue">‎16.32 x 7.57 x 0.82 cm; 590 g</td><br />
                                </tr><br />
                                <tr><br />
                                    <th class="a-color-secondary a-size-base prodDetSectionEntry">Item model number</th><br />
                                    <td class="a-size-base prodDetAttrValue">‎RMX3853</td><br />
                                </tr><br />
                                <tr><br />
                                    <th class="a-color-secondary a-size-base prodDetSectionEntry">Other display features</th><br />
                                    <td class="a-size-base prodDetAttrValue">‎Wireless</td><br />
                                </tr><br />
                                <tr><br />
                                    <th class="a-color-secondary a-size-base prodDetSectionEntry">Item Weight</th><br />
                                    <td class="a-size-base prodDetAttrValue">‎590 g</td><br />
                                </tr><br />
                            </table><br />
                        </div><br />
                    </div><br />
                </div><br />
            </div><br />
        </div><br />
        <div class="a-row a-spacing-base"></div><br />
    </div><br />
    <div class="a-column a-span6 a-span-last"><br />
        <div class="a-row a-spacing-base"><br />
            <div id="productDetails_db_sections" class="a-section"><br />
                <h1 class="a-size-medium a-spacing-small secHeader">Additional Information</h1><br />
                <div class="a-section table-padding"><br />
                    <table id="productDetails_detailBullets_sections1" class="a-keyvalue prodDetTable" role="presentation"><br />
                        <tr><br />
                            <th class="a-color-secondary a-size-base prodDetSectionEntry">Date First Available</th><br />
                            <td class="a-size-base prodDetAttrValue">30 October 2024</td><br />
                        </tr><br />
                        <tr><br />
                            <th class="a-color-secondary a-size-base prodDetSectionEntry">Item Dimensions LxWxH</th><br />
                            <td class="a-size-base prodDetAttrValue">16.3 x 7.6 x 0.8 Centimeters</td><br />
                        </tr><br />
                        <tr><br />
                            <th class="a-color-secondary a-size-base prodDetSectionEntry">Net Quantity</th><br />
                            <td class="a-size-base prodDetAttrValue">1.00 Piece</td><br />
                        </tr><br />
                    </table><br />
                </div><br />
            </div><br />
        </div><br />
        <div class="a-row a-spacing-base"></div><br />
        <div class="a-row"><br />
            <div class="a-section"><br />
                <div class="a-section table-padding"></div><br />
            </div><br />
        </div><br />
    </div><br />
</div><br />
```<br />
<br />
In this modified HTML, the "ASIN," "Customer Reviews," and "Best Sellers Rank" rows have been removed from the table, as required.